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Explain the difference in the results obtained regarding the oxidase activity of milk on the substrate formalin? Explain in 1-3 sentences
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- Explain the difference in the results obtained regaarding the action of amylase on starch? Explain in 1-3 sentencesExplain the mechanism action of denaturation of protein from milk using acetic acid.In the isolation of glycogen from liver, why it is necessary to filter the solution while it is still hot? Explain in 1-3 sentences
- Positive results for Benedict’s test range from green, yellow orange to red. How does the sugar concentration and Cu2O concentration cause this? I know Cu2O is red. Why is there a green or yellow color instead of just red or some kind of red?Define the following terms: a. pyruvate/alanine b. racemization c. PLP d. ping-pong mechanism e. de novoWhat is the protein in milk? Why is this protein precipitated when milk sours?
- What is the effect of lowered pH on the proteins found in dairyproducts during lactic acid fermentation?Examine the graph shown below of a liquid culture growth curve for S. pneumoniaegrowing in minimal broth containing both glucose and lactose in equal concentrations as a potential carbon source. Answer the following questions: a) Name the growth phases labelled as I, II and III, explain the observed pattern of growth at each of these stages in the curve b) Where would the concentration of cAMP be low and why? c) In what phase would β-galactosidase be high and why? d) What kind of overall growth pattern does this curve illustrate?In the estimation of glucose with benedict's reagent, what is resposnible for the white precipitate observed? Indicated the reaction responsible for this.